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Finding the Fourth Proportional to 7,187.33, 9,915.16 and 4,796.67

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Solution

The fourth proportional to 7,187.33, 9,915.16 and 4,796.67 is: 6,617.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187.33 : 9,915.16 = 4,796.67 : x
  2. Step 2: Convert to fraction form
    7,187.33/9,915.16 = 4,796.67/x
  3. Step 3: Cross multiply
    7,187.33x = 9,915.16 × 4,796.67
  4. Step 4: Simplify right side
    7,187.33x = 47,559,728.93
  5. Step 5: Solve for x
    x = 47,559,728.93/7,187.33
  6. Step 6: Final answer
    x = 6,617.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.